Content sharing system; content processing apparatus; information processing apparatus; program; recording medium; and content sharing method

a content sharing and content technology, applied in the field of content sharing systems, can solve the problems of content utilization freedom, content utilization freedom, content distribution, etc., and achieve the effect of promoting the degree of freedom in content utilization and efficient copyright managemen

Inactive Publication Date: 2005-05-26
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] It is an object of the present invention to provide a content sharing system that can efficiently execute copyright management for limiti

Problems solved by technology

Therefore, in recent years, with the progress of the popularization of the Internet and the increase in speed of operation and capacity of personal computers, illegal distribution, exchange, and so forth of content without its copyright owner's permission is increasing.
Therefore, the performance of the content user's apparatus, the form of interconnection of a plurality of apparatuses, and so forth, are restricted.
Besides, a copyright management process must be e

Method used

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  • Content sharing system; content processing apparatus; information processing apparatus; program; recording medium; and content sharing method
  • Content sharing system; content processing apparatus; information processing apparatus; program; recording medium; and content sharing method
  • Content sharing system; content processing apparatus; information processing apparatus; program; recording medium; and content sharing method

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

(First Embodiment)

[0037] A content sharing system in accordance with a first embodiment of the present invention is described below.

[0038] First, an outline of the content sharing system according to the present embodiment is described.

[0039] The content sharing system in accordance with the present embodiment is configured as a copyright management system for managing content sharing between a plurality of content processing apparatuses. The content sharing system is intended to prevent illegal utilization of content, such as distributing a great amount of content through the Internet or similar network, and to limit content sharing between content processing apparatuses of many and unspecific users. At the same time, to raise the degree of freedom in content utilization, the content sharing system permits a user, or the user's family, friends, or the like, to share content comparatively freely between a plurality of content processing apparatuses.

[0040] In a conventional copyri...

application example 4

(Application Example 4)

[0239] Now an application example 4 of the content sharing system 100 in accordance with the present embodiment is described with reference to FIG. 15.

[0240] As seen from FIG. 15, in the application example 4, upon sharing of distribution content data, addition of source IDs corresponding to a plurality of users to the rendering permission ID list L2 of the single content processing apparatus 10-2 is inhibited.

[0241] In particular, the content processing apparatus 10-1 owned by the user A has, in the rendering permission ID list L1 thereof, the source ID “user ID-A” received from the distribution server 20, connected to the distribution server 20 via the network 5 similarly as in the application example 3 described above. Also the content processing apparatus 10-3 owned by the user B similarly has the source ID “user ID-B” in the rendering permission ID list L3 thereof.

[0242] If the rendering permission ID list L1 of the content processing apparatus 10-1 an...

application example 5

(Application Example 5)

[0246] Now an application example 5 of the content sharing system 100 in accordance with the present embodiment is described with reference to FIG. 16.

[0247] As seen from FIG. 16, in the application example 5, employment of list management is changed in response to the type of a source ID, or in other words, employment of a source ID for distribution content data and employment of a source ID for production content data are combined.

[0248] In particular, to production content data produced by the content processing apparatuses 10-1 and 10-3, source IDs “ID1” and “ID3” for a measurement of an apparatus corresponding to the content processing apparatus 10 are added, respectively. On the other hand, to distribution content data distributed from the distribution server 20, source IDs “user ID-A” and “user ID-B” for a measurement of a user corresponding to user accounts of a distribution service are added.

[0249] Further, the addition permission criterion of a so...

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PUM

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Abstract

A content sharing system is disclosed that can efficiently execute copyright management for limiting illegal utilization of content, and can promote the degree of freedom in utilization of content within a legal range of private utilization. In the content sharing system, a content processing apparatus on the content providing side includes a source ID addition section for adding, to the content data, a source ID for specifying a providing source of content data. Meanwhile, another content processing apparatus on the content acquiring side includes a content rendering section having a rendering permission ID list including source IDs, added to content data whose rendering is permitted, for limiting, based on the source ID added to the acquired content data and the rendering permission ID list, rendering of acquired content data rendering. The content sharing system further includes a list management section for permitting updating of the rendering permission ID list.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates to a content sharing system wherein content data are shared between a plurality of content processing apparatuses. [0002] Different from conventional analog content, digital content of music and so forth can be copied multiple times without suffering from any quality deterioration. Therefore, in recent years, with the progress of the popularization of the Internet and the increase in speed of operation and capacity of personal computers, illegal distribution, exchange, and so forth of content without its copyright owner's permission is increasing. [0003] In order to prevent such illegal actions, a copyright management system, which utilizes a DRM (Digital Rights Management) technique that places limitations on the distribution and utilization of content, is being popularized. In a copyright management system of the type described, usually the number of copies of original content items is managed strictly to limit illegal copy...

Claims

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Application Information

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IPC IPC(8): G06F13/00G06F12/14G06F17/00G06F19/00G06F21/00G06F21/10G06F21/62G06Q10/00G06Q30/06G06Q50/00G06Q50/10
CPCG06F2221/0737G06F21/10G06F21/16G06F17/00Y10S707/99939Y10S707/99945
Inventor NAGANO, MOTOHIKOEBIHARA, MUNETAKETANABE, MITSURUSATO, ICHIROKUNO, HIROSHI
Owner SONY CORP
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